Rotary engine



(No Model.) 2 Sheets-Sheet 1.

J. w. ,BLOUN-T- ROTARY ENGINE.

No. 541,064. Patented June 18,-1 895.

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! I fl' J. W. BLOUNT. ROTARY ENGINE.

2 Sheets-Sheet 2.

,(No Model.)

Patented June 18, 1895.

UNITED STAT-ES PATENT QFFI'CE.

JOHN "W. BLOUNT, OF ALLEGHENY,-PENNSYLVANIA.

ROTARY ENGINE.

SPECIFICATION forming part of Letters Patent It'd 541,064, dated June 18, 1895. Application filed August10,1394- serinno. 519,950. w man.)

To aZZ whom it may concern:

Be it known that I, JOHN WILLIAM BLOUNT, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Rotary Engines;

and I do hereby declarethe following tobe a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompany ing drawings, which form a part of this specification.

My invention relates to an improved rotary engine, and it consists in certain details of con-V structlon, and combination of parts as will be v spective view of one section of the piston-rod; and showing the steam or exhaust port formed.

in the face of the same. Figs. 7 and 8 are reduced face views of the two false heads in which the steam and exhaust ports are formed.

Fig. 9 is an end elevation of a modified form of my improved rotary engine having the head removed from the cylinder. Fig. 10 is a side sectional elevation of the same.

To put my invention into practice I provide a cylinder having a greater horizontal diameter than vertical or'vice versa in which is eeoentrically arranged a piston 2. This piston consists in a fiat plate 2having a suitable steam packing 21 arranged at one side and edge, and is arranged in a bearing 8 divided inder 1.

reversing the direction.

Fig. 4 is anton 2, are disks orfalse heads 4 and 5 having ports formed in the face of each which are in communication with the steam ports 2 and exhaust ports 17 formed in the top of the cyl Arranged on the top of the cylinder 1 is a valve 19 having an opening 18 through the same and a recess 17 to cover the exhaust ports 17. This valve 19 is provided with a lever 20 by means of which the same may be turned slightly to admit the steam to the op posite side of ,the piston for the purpose of This valve when once set is allowed to remain in that position until it is desired to change the direction or reverse the engine.

In operation steam is admitted into the steam chest and into the port 12 leading to one end of the cylinder 1, and then conducted through the P01171111 one of the false heads to one of the radial grooves 10 formed in the end of the bearing 8, and from thence through tho opening14 into the cylinder 1. The steam acting on the long sid of the piston 2 will "cause the same to revolve about the cylinder adjusting itself to the bore of the same, as

will be seen by reference to the dotted lines on Fig. 9 of the drawings. The exhaust from the other side of the piston will escape through the opening 17, (see Fig. 1,) through the port 6 of the disk 4 and thence to the exhaust ports 17 formed in the valve 19.

.The direction of the rotation of the piston 2 is changed by simply moving the opening 18 over the other steam port leading to the other false head 5.

By this construction ofa rotary engine the same may be made to cutoff the steam at any desired length of stroke of the piston, by regu lating the length of the ports 9 and 10 in the ends of. the bearings 8.

At Figs. 9 and 10 on the drawings I have shown a modification of my improved engine, and in which thecylinder 1, the piston 2, and bearingsS are of the same construction as those before described, and the said cylinder provided with a steam inlet port 12, and exhaust port 17* arranged in one of the heads of the said cylinder. This modification of my improved engine will operate in one direction and cannot be reversed.

Having thus described my invention, I claimlhe rotary engine comprising a cylinder having two sets of ports or passages in its upper part each set terminating at the ends and in the center thereof, the valve arranged in the top of the cylinder having an opening and a recess adapted to communicate with said ports or passages, the false heads, each having two sets of ports or passages also adapted to communicate with the aforesaid ports or passages and the eccentrically hung bearing carrying a sliding piston and pro forth.

In testimony that I claim the foregoing I hereunto affix my signature this 27th day of January, A. D. 1894:.

JOHN \V. BLOUN".

In presence of- Ms. J. MCAFEE, M. E. HARRISON. 

